Citation: Amir Mosayebi, Reza Abedini. Effect of synthesis solution pH of Co/γ-Al₂O₃ catalyst on its catalytic properties for methane conversion to syngas[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(3): 311-318. shu

Effect of synthesis solution pH of Co/γ-Al₂O₃ catalyst on its catalytic properties for methane conversion to syngas

Amir Mosayebi ^1,, ,
Reza Abedini ²

1.
Department of Chemical Engineering, Tafresh University, Tafresh 39518 79611, Iran
2.
Faculty of Chemical Engineering, Babol Noshirvani University of Technology, Babol 47148 71167, Iran

Corresponding author: Amir Mosayebi, mosayebi@tafreshu.ac.ir
Received Date: 1 November 2017
Revised Date: 31 January 2018

Figures(3)

The cobalt nanoparticles over γ-Al₂O₃ support were prepared via chemical reduction of CoCl₂·6H₂O using NaBH₄ with various values of pH in the range of 11.92-13.80. Synthesized catalysts were studied through X-ray diffraction (XRD), N₂ adsorption/desorption (BET), H₂-temperature programmed reduction (H₂-TPR), H₂-chemisorption, O₂ pulse titration and temperature programmed oxidation (TPO) methods. Obtained results exhibited the synthesis solution pH showed a significant influence on the activity and selectivity in partial oxidation of methane reaction. The methane conversion, CO selectivity and H₂ yield were enhanced by increasing of the synthesis solution pH. Compared to other catalysts, the catalyst that synthesized at pH of 13.80, showed a superior ability in syngas production with a H₂/CO ratio of near 2 and also a proper stability against deactivation during the partial oxidation of methane.
- partial oxidation,
- Co/γ-Al₂O₃,
- nanoparticles,
- selectivity,
- pH value
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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Effect of synthesis solution pH of Co/γ-Al2O3 catalyst on its catalytic properties for methane conversion to syngas

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通讯作者: 陈斌, bchen63@163.com

Effect of synthesis solution pH of Co/γ-Al₂O₃ catalyst on its catalytic properties for methane conversion to syngas